Core-less brushed DC motors have low inertia and inductance. This lets them be used in applications needing dynamic behavior and fast responses from the motor. Using PWM allows precise current ...

This is a very cool electronic project to control dc loads using a very cheap and reliable design. This video also explains ...

It’s an excellent way to learn about both PWM motor control and the use of 555 timers, all with a very low parts cost and readily available components. We’ve seen such setups before, used as ...

Motor speed can be adjusted by the light intensity falling into the photoresistors LDR1 and LDR2. These resistors control the bias points of two transistors connected via an input inverting buffer ...